9640441 has 8 divisors (see below), whose sum is σ = 10009800. Its totient is φ = 9273600.

The previous prime is 9640417. The next prime is 9640447. The reversal of 9640441 is 1440469.

9640441 = 2195² + 2196².

It can be written as a sum of positive squares in 4 ways, for example, as 4822416 + 4818025 = 2196^2 + 2195^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9640441 - 2¹¹ = 9638393 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (9640447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11215 + ... + 12043.

It is an arithmetic number, because the mean of its divisors is an integer number (1251225).

Almost surely, 2^9640441 is an apocalyptic number.

9640441 is the 2196-th centered square number.

It is an amenable number.

9640441 is a deficient number, since it is larger than the sum of its proper divisors (369359).

9640441 is a wasteful number, since it uses less digits than its factorization.

9640441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 9640441 is about 3104.9059567079. The cubic root of 9640441 is about 212.8297330762.

Adding to 9640441 its sum of digits (28), we get a palindrome (9640469).

The spelling of 9640441 in words is "nine million, six hundred forty thousand, four hundred forty-one".